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dc.contributor.authorYabe, Kiyoto
dc.contributor.authorOhta, Kouji
dc.contributor.authorIwamuro, Fumihide
dc.contributor.authorAkiyama, Masayuki
dc.contributor.authorTamura, Naoyuki
dc.contributor.authorYuma, Suraphong
dc.contributor.authorKimura, Masahiko
dc.contributor.authorTakato, Naruhisa
dc.contributor.authorMoritani, Yuki
dc.contributor.authorSumiyoshi, Masanao
dc.contributor.authorMaihara, Toshinori
dc.contributor.authorSilverman, John
dc.contributor.authorDalton, Gavin
dc.contributor.authorLewis, Ian
dc.contributor.authorBonfield, D.
dc.contributor.authorLee, Hanshin
dc.contributor.authorCurtis-Lake, Emma
dc.contributor.authorMacaulay, Edward
dc.contributor.authorClarke, Fraser
dc.date.accessioned2014-09-29T11:15:58Z
dc.date.available2014-09-29T11:15:58Z
dc.date.issued2014-02-01
dc.identifier.citationYabe , K , Ohta , K , Iwamuro , F , Akiyama , M , Tamura , N , Yuma , S , Kimura , M , Takato , N , Moritani , Y , Sumiyoshi , M , Maihara , T , Silverman , J , Dalton , G , Lewis , I , Bonfield , D , Lee , H , Curtis-Lake , E , Macaulay , E & Clarke , F 2014 , ' The mass-metallicity relation at z 1.4 revealed with Subaru/FMOS ' , Monthly Notices of the Royal Astronomical Society , vol. 437 , no. 4 , pp. 3647-3663 . https://doi.org/10.1093/mnras/stt2185
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 7601538
dc.identifier.otherPURE UUID: faa82520-c618-4477-9f5a-723e97c98a83
dc.identifier.otherScopus: 84891354225
dc.identifier.urihttp://hdl.handle.net/2299/14484
dc.description.abstractWe present a stellar mass-metallicity relation at z ~ 1.4 with an unprecedentedly large sample of ~340 star-forming galaxies obtained with FibreMulti-Object Spectrograph (FMOS) on the Subaru Telescope. We observed K-band selected galaxies at 1.2 ≤ zph ≤ 1.6 in the Subaru XMM-Newton Deep Survey/Ultra Deep Survey fields with M*> 109.5M⊙, and expected F(Hα) > 5 × 10-17 erg s-1 cm-2. Among the observed ~1200 targets, 343 objects show significant Ha emission lines. The gas-phase metallicity is obtained from [N II] λ6584/Hα line ratio, after excluding possible active galactic nuclei. Due to the faintness of the [N II] λ6584 lines, we apply the stacking analysis and derive the mass-metallicity relation at z ~ 1.4. Our results are compared to past results at different redshifts in the literature. The mass-metallicity relation at z ~ 1.4 is located between those at z ~ 0.8 and z ~ 2.2; it is found that the metallicity increases with decreasing redshift from z ~ 3 to z ~ 0 at fixed stellar mass. Thanks to the large size of the sample, we can study the dependence of the mass-metallicity relation on various galaxy physical properties. The average metallicity from the stacked spectra is close to the local Fundamental Metallicity Relation (FMR) in the higher metallicity part but >0.1 dex higher in metallicity than the FMR in the lower metallicity part.We find that galaxies with larger E(B -V), B -R and R -H colours tend to show higher metallicity by ~0.05 dex at fixed stellar mass. We also find relatively clearer size dependence that objects with smaller half-light radius tend to show higher metallicity by ~0.1 dex at fixed stellar mass, especially in the low-mass part.en
dc.format.extent17
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.rightsOpen
dc.subjectAbundances-galaxies
dc.subjectEvolution-galaxies
dc.subjectGalaxies
dc.subjectHigh-redshift
dc.subjectSpace and Planetary Science
dc.subjectAstronomy and Astrophysics
dc.titleThe mass-metallicity relation at z 1.4 revealed with Subaru/FMOSen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
dc.description.versiontypeFinal Accepted Version
dcterms.dateAccepted2014-02-01
rioxxterms.versionAM
rioxxterms.versionofrecordhttps://doi.org/10.1093/mnras/stt2185
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeOpen


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